Method of making rail bonds



March 1939- A. E; BRICKMAN ET AL 2,151,292

METHOD OF MAKING RAIL BONDS Filed June 13, 1956 Patented Mar. 21, 1939 UNITED STATES PATENT OFFICE METHOD OF MAKING BAIL BONDS Alan E. Brlckman and George A. Gleason, Worcester, Mass, assignors to The American Steel and Wire Company of New Jersey, ,a corporation of New Jersey Application june 13, 1936, Serial No. 85,160

2 Claims.

This invention relates to rail bonds, one of the objects being to facilitate and cheapen the manufacture of these articles. Other objects may be inferred.

Referring to the accompanying drawing:

Figure 1 shows an example of the manufacturlng of bonds according to this invention.

Figure 2 shows one of the resulting bonds.

Figure 3 is a modification of the manufacture.

Figure 4 shows an end of one of the resulting bonds and its previous relationship to others.

According to the present invention, right and left hand terminals I and 2 joinod by short connecting portions 3 are die-cast to a conductor strand 4 in spaced positions. Each of the terminals l and 2 may be constructed to provide the usual head and stud or pin, and the connecting portions 3 may be die-cast to surround the conductor l. Preferably, these portions 3 should 20 not be much larger in diameter than the strand.

An abrasive cutting wheel 5 maythen be used to sever the connecting portions 3 so as to simultaneously separate the terminals and sever the strand 4. In this manner the bonds are produced 25 as units at a nfilch cheaper cost. 7

To carry this idea still further, the right and left hand terminals l and 2 may be die-cast in pairs to adjacent parallel conductor strands in spaced positions. The connecting portions 3 are the same as have already been described and the right hand terminals in each pair are connected to the left hand terminals in each pair by connecting portions .3. Preferably, the die-casting is done so that the bonds and their connecting portions form rectangular shapes with the connecting portions forming sides cfthese shapes whereby they may be severed at right angles to produce the bonds as units. The portions 3 that are parallel the strands may be die-cast to surround the latter. whereupon the two may be simultaneously severed with a single cut. The portions 3 should also be made of reduced diameter to facilitate the severing and. provide a chamfered drive head.

Although the drawing shows pin-type termi- 5 nals, it is to be understood that the invention is equally applicable to the production of stud-terminal rail bonds. Bonds having terminals of other types may also be so produced.

We claim:

1. A method of making rail bonds, including die-casting pairs of right and left hand terminals so that they are all joined together by short connecting portions to adjacent parallel conductor strands at spaced positions and then severing said portions to produce the bonds as units, said die-casting being done so that the bonds and their connecting portions form rectangular shapes with said connecting portions forming sides of said shapes whereby said severing may be performed by two right angular cuts to sever at least four of said connecting portions.

2. A method of making rail bonds, including die-casting pairs of right and left hand terminals so that they are all joined together by short connecting portions to adjacent parallel conductor strands at spaced positions and then severing saidportions to produce the bonds as units, said die-casting being done so that the bonds and their connecting portions form rectangular shapes with said connecting portions forming sides of said shapes whereby said severing may be performed by two right angular cuts to sever at least four of said connecting portions, the ones of said portions that are parallel said strands surrounding the latter whereby the two are simultaneously severed with a single cut.

ALAN E. BRICKMAN.

GEORGE A. GLEASON. 

